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Old 10-20-2012, 05:16 PM   #70426
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Originally Posted by badweatherbiker View Post
so the consensus is remove some tape and turn in the mixture screw?
You could adjust the pilot screw via the following method:

Start the engine and warm it up. Lower the idle speed below the factory spec. Starting from a setting that is known to be lean (1-1/2 turns is likely but not guaranteed to be), adjust the fuel screw to obtain the highest idle speed. Adjust to 1/8 - 1/4 turn richer than that. Then, adjust the idle speed back to 1500 rpm. Report back with the setting.

In order to determine whether, as Rumlover suggested, the mixture was lean before the tape was applied and is only now rich, you could gradually remove more and more tape, testing after each change. If he is right, there will be a sweet spot where it runs better than it does now as well as how it ran un-taped. If the problem gradually gets better as you untape, but never gets better at any stage than before it was taped or now, then you started out too rich and taping only made it richer.


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